Roll-up blind with stowable guiding members for the window of a vehicle

ABSTRACT

A roll-up window blind ( 5 ) for automobile rear windows panes ( 4 ) has two actuating levers ( 9, 11 ) with which the pullrod ( 13 ) is moved in the direction of reeling-out or reeling-in of the blind material ( 12 ). The levers ( 9, 11 ) are borne in such manner that, in the reeled-out state, the pullrod ( 13 ) is pressed with a tension force against the rear window pane ( 4 ). In order to avoid any damage to the heating wires, the pullrod ( 13 ) is provided on its ends with guide elements ( 41 ), which are mounted movably on the pullrod ( 13 ). With the blind ( 5 ) reeled out, they project over the outer contour of the pullrod ( 13 ) and, as they themselves come to lie on the rear window pane ( 4 ), they hold the pullrod ( 13 ) at a distance from the rear window pane ( 4 ). On reeling-in they are retracted behind the outer contours of the pullrod ( 13 ), so that they can be retracted into the slot ( 7 ) from which the blind material emerges, and, namely, without recesses for the guide elements being necessary on the slot edges ( 22 ).

FIELD OF THE INVENTION

The invention generally relates to window blinds for use in automobiles.

BACKGROUND OF THE INVENTION

By reason of the body shape in modern motor vehicles the rear windowlies relatively flat. Because of this body shape the setting sun canheat up the car interior over a relatively large light-admittingopening. This is especially disadvantageous also because underneath therear window pane there is located the mostly dark-colored hat depositspace, which warms up strongly in the sunlight, and because of the greatdistance from the windowpane the sunlight can give off heat well intothe car interior.

In order to prevent this, from DE 36 12 165 a roll-up window blind isknown which is designed especially for mounting on the rear window. Tothe roll-up blind there belongs a winding shaft turnably borneunderneath the hat deposit space, to which (winding shaft) there isfastened with one edge a roll-up blind. By means of a spring motor,which is seated in the tubular winding shaft, the winding shaft ispre-stressed in the direction of a reeling-in of the roll-up blind. Theother edge of the roll-up blind is fastened to a pull-rod which servesas a guide rail for two swingably borne levers. The levers are swingablebeside the winding shaft about an axis which is at a right angle to theaxis of the winding shaft. By means of a motor drive arrangement, thetwo levers can be transferred from a position in which they lie aboutparallel to the winding shaft into an upright position. Since the freeends of the levers are connected with the pull-rod, by thesetting-upright of the levers the roll-up blind is reeled out andclamped.

The levers are, to be sure, sufficiently bending-stiff, but neverthelessby reason of their yieldingness they show in operation a vibration in amanner such that the pull-rod moves away from the windowpane or strikesagainst this.

In order to avoid this effect, on the ends of the pull-rod there aremounted two guide elements which, at least in the last range of thereeling-out stroke of the roll-up blind, come to lie against the insideof the rear window and in cooperation with the rear window impart apre-stressing to the levers, so that the levers can press the pull-rodwith force in the direction toward the rear window. Thereby theabove-mentioned vibration effects are avoided.

The guide elements are needed in order to avoid a damaging of theheating wires on the inside of the window pane. In order to achieve thisfunction, however, they must correspondingly overhang the outer contourof the pull-rod.

The overhanging guide elements are troublesome when the pullrod in thereeled-in state is to cover the outlet slot of the roll-up housing, oris to disappear in it. They require a corresponding enlargement of theslot opening on the outlet slot, so that in the reeling-in they canplunge through the outlet slot.

OBJECTS AND SUMMARY OF THE INVENTION

Accordingly, in view of the foregoing, a general object of the presentinvention is to provide a roll-up window blind for the window of a motorvehicle in which the guide elements do not require any additionalrecesses in the area of the outlet slot.

In the new roll-up window blind the two guide elements are no longerrigidly seated on the pullrod. They are movable with respect to thepullrod and, with the aid of a correspondingly formed bearingarrangement, they can be drawn back behind the contour of the pullrod orof a cover covering the pullrod. They have two operating positions,namely an operating position in which they are withdrawn behind thecontour and a further operating position in which they project beyondthe contour of the pullrod, in order to provide their supporting actionon the inner side of the windowpane.

With the new solution it does not matter whether the winding shaft isborne in a separate housing or is installed directly on the under sideof the hat deposit space or else is lodged in a housing that is loweredin the hat deposit space.

Depending on the form of execution then, the outlet slot can be locatedin the housing or in the hat deposit space.

With the new arrangement it is likewise possible to attune the pullrodand outlet slot to one another in such manner that a narrow gap remainsaround the pull rod, which has over its entire length virtually the samewidth when the pull rod in the reeled-in state is lowered in the outletslot.

If this gap is felt to be inappropriate because small parts can jam inthe gap, there is also the possibility of shaping the pullrod in such away that with the reeled-in roll-up blind it completely covers theoutlet slot.

The guide or spacing elements can be slide skids or small rollers orwheels which in the traveling-out do not slide over the windowpane, butroll over it. Any damage to the heating wires is then still more surelyavoided.

The bearing arrangement for the guide elements can be a slide-blockingguide, with the aid of which the guide elements are led between the twoend positions. The slide-block guidance can be used both in embodimentswith slide skids, and also in embodiments with rotatable rollers.

In the case of a slide skid, the slide-block guide can have the shape ofa uniformly curved slot in which the slide skid is guided, secureagainst turning. It can, however, also take on the form of a L-shapedguide channel if a turnable roller is used. In the case of an L-shapedguide channel, this latter is aligned in such a way that one sectionruns about horizontally in the direction toward the rear window pane,while the other section goes downward to the next adjacent point of thehorizontally running section.

Instead of the slide-block guidance, the guide elements can also bemounted on a bearing carrier which on its part is swingable about avertical axis.

In all cases the pressing-back of the guide elements behind the contourof the pullrod occurs by the edge of the outlet slot in the reeling-inof the roll-up window blind.

The reeling-out into the overhanging position is brought about mostsimply with the aid of a pre-stressing arrangement which pre-stressesthe bearing arrangement or the guide element in the direction toward theoverhanging position.

These and other features and advantages of the invention will be morereadily apparent upon reading the following description of preferredexemplary embodiments of the invention and upon reference to thedrawings wherein:

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic rear perspective view of an illustrative motorvehicle showing a roll-up blind according to the invention in thereeled-out state.

FIG. 2 is an enlarged perspective view of the free end of the actuatinglever of the roll-up window blind of FIG. 1 shown sliding in thepullrod.

FIG. 3 is a side elevation view of an exemplary embodiment of the guideelement for the window blind of FIG. 1.

FIG. 4 is a side elevation view of the guide element of FIG. 3 as itruns into the outlet slot.

FIG. 5 is a side elevation view of the guide element of FIG. 3 in thecompletely reeled-in state.

FIG. 6 is a side elevation view of a further embodiment of a guideelement for the window blind of FIG. 1.

FIGS. 7-9 are side elevation views of another embodiment of a guideelement for the window blind of FIG. 1 which includes a pivotablebearing carrier.

While the invention will be described and disclosed in connection withcertain preferred embodiments and procedures, it is not intended tolimit the invention to those embodiments. Rather it is intended to coverall such alternative embodiments and modifications as fall within thespirit and scope of the invention.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

FIG. 1 shows in an extremely schematic manner the rear part of a motorvehicle 1 in a view from the rear. In the perspective representationthere is to be recognized a left rear side window 2 as well as a rearwindow 3 with the inserted, ordinarily curved windowpane 4. In front ofthe inner side of the windowpane 4 there is present a roll-up windowblind 5, which is shown in the reeled-out state.

Further there is to be seen in FIG. 1 a hat deposit area 6, illustratedin broken-open form, in which there is contained an outlet slot 7extending over the width of the hat deposit area 6.

To the roll-up window blind 5 there belong a winding shaft 8, twoactuating levers 9 and 11, a blind material 12 as well as a pullrod 13.

The winding shaft 3, which is to be recognized section-wise in thebroken-open part of the hat deposit area 6, is turnably borne underneaththe hat deposit area 6 with bearing arrangements not further shown. Inthe interior of the winding shaft 8 there is located a spring motorwhich pre-stresses the winding shaft 8 steadily in the direction of awinding-up of the blind material web 12. The winding shaft 8 lieshorizontally about underneath the straight outlet slot 7 and parallel tothis.

The blind material 12 consists of a smooth perforated plastic foil whichis fastened with one edge to the winding shaft 8 and with its other edge14, parallel thereto, to the pullrod 13.

The two actuating levers 9 and 11 are in mirror image to one another, sothat the description for the actuating lever 9 holds analogously alsofor the actuating lever 11. The actuating lever 9 is a double-armedlever with a lever section 15 as well as a lever section 16. At thetransition point between the two lever sections 15 and 16 there ispresent a bearing bore 17, with the aid of which the actuating lever 9is swingably borne on a bearing pivot 18. The bearing pivot 18 isfastened to the underside of the broken-away part of the hat depositarea 6 beside the outlet slot 7. The alignment of the bearing pivot 8 isformed in such manner that the lever section 9 moves in a plane whichlies about parallel to the plane defined by the windowpane 4.

The actuating lever 9 can be transferred from a position in which thelever section 15 runs about parallel to the winding shaft 8 into aposition in which it lies about parallel to the lateral boundary edgesof the rear window 3.

In order to move the actuating lever 9 back and forth between these twoend positions, the lower lever section 16 is connected to a drive motor20, over an actuation rod 19. The actuation rod 19 lies parallel to thewinding shaft 8 and likewise underneath the hat deposit area 6 togetherwith the drive arrangement 20. The actuating lever 11 is executed inmirror image and is moved synchronously over a corresponding actuationrod in opposite direction to the actuating lever 9.

In the reeled-out state the two lever sections 15 of the actuatinglevers 9 and 11, as shown, extend upward through the outlet slot 7,while in the reeled-in state they largely disappear under the hatdeposit area 6.

The outlet slot 7 is bounded by two slot edges 22 and 23 which have aspacing from one another such that the two actuating levers 9 and 11 canpass through unimpeded and that also in the actuating levers 9 and 11the blind material 12 can be drawn out.

With a reeled-in blind the outlet slot 7 is covered by the pullrod 13.

The connection of the actuating lever 9 with the pullrod 13 as well asits profile are to be perceived from FIG. 2.

The profile of the pullrod 13 is composed imaginatively of a relativelynarrow strip 25 cylindrically slightly curved upward, and of adownward-leading center piece 26. Its cross-section, therefore, is aboutT-shaped and it remains unchanged over the length of the pullrod 13. Thewidth of the strip 25 is dimensioned in such manner that with areeled-in roll-up window blind 5 it covers the outlet slot 23, whereasthe center piece 26 plunges downward through the outlet slot 7. Thecurvature axis of the cover strip 25 lies parallel to the longitudinalextent of the pullrod 13.

The center piece 26 is bounded by two side surfaces 27 and 28, parallelto one another, which stand perpendicularly on the underside of thestrip 25.

Proceeding from the side surface 28 there leads into the center piece 26a groove 29, rectangular in cross section, which extends into thevicinity of the side wall 27. This groove 29 runs through likewise overthe entire length of the pull rod 13 and serves as a guide groove for ahead end-piece 31 of the actuating lever 9.

Finally, the center piece contains in its lower side 32 a groove 33 inwhich the corresponding edge of the blind material 12 is anchored, forexample by cementing.

The head end 31 is a multiply bent-off molded part which is insertedwith a pivot (not further recognizable) in the tubular actuating lever9. Proceeding from the free end of the lever 9 the headpiece 31 forms anupward-standing continuation 35, which goes over into a cylindricalpivot 36. The cylindrical pivot 36 extends at a right angle to thelongitudinal axis of the lever section 15 and it is laterally offsetover a certain distance with respect to the latter.

The pivot 36 lies in the groove 39, whereby there is generated ashiftable coupling between the actuating lever 9 and the pullrod 13.

So that the pivot 36 cannot inadvertently come free from the groove 29during the actuation of the roll-up window blind 5, there is located ata distance from the groove 29 a downward leading strip 37, which ismolded on the underside of the strip 25. Its distance from the sidesurface 28 corresponds to the thickness of the thickness of theprojection 35 measured in this direction.

The actuating lever 11 is guided in the same, but mirror-image manner,likewise in the groove 29.

In case that, by reason of the proportions in the reeled-in state, theactuating levers 9 and 11 were to collide in the groove 29, it is alsopossible to use two grooves 29 lying one over the other, in which caseeach groove is provided for one of the actuating levers.

So that in the traveling in and out the pullrod 13 pressed withpre-stressing against the inner side of the windowpane 4 will not damagethe heating wires, it is provided with guide elements 41 in the vicinityof both ends. The guide elements 41 are movably borne and in oneposition stand over the outer contour of the head strip 25 of thepullrod 13, while in the other position they are drawn back with respectto its outer contour.

In FIGS. 3 to 5 there is shown, highly schematically, one of the guideelements 41 together with the appertaining bearing arrangement 42.

The bearing arrangement 42 has two plate-shaped bearing flanges 43,running with spacing parallel to one another, which are fastened to theunder side of the cover strip 25; the bearing flange facing the observeris omitted. They point to the windowpane 4. The type of fastening to thecover strip 25, for reasons of clarity, is not represented, especiallysince this is not of significance for the substance of the invention.What is important to notice is merely that the center piece 26 ends at asufficient distance from the two bearing flanges 43, in order to createspace for their fastening to the cover strip 25.

Because of the type of representation, of the two bearing flanges 43parallel to one another only one of them is to be perceived. Thiscontains, adjacent to the windowpane 4, a slide-block guide in the formof a guide slot 44 closed along the circumference. The guide slot 44 iscomposed of a straight, horizontally running branch 45, as well as of acurved downward-leading branch 46. The straight, horizontally runningbranch 45 points to the windowpane 4 and, at its end adjacent to thewindowpane 4, it goes over into the descending branch 46.

The descending branch 46 curves, as the figure makes evident, away fromthe windowpane 4, so that its lower end 47 is at a greater distance froma vertical plane than the transition zone between the branch 45 and thebranch 46.

The guide slot 44 has the same width over its entire length.

With the guide slot 44 there is aligned a congruent guide slot which iscontained in the broken-away bearing flange.

In the gap between the two bearing flanges 43 there is arranged theguide element 41. The guide element 41 is a small roller with anessentially cylindrical outer circumferential surface 48 and a coaxiallypenetrating axle 49. The axle 49 projects at both ends over the roller41 and it extends with its overhanging ends into the two guide slots 44aligned with one another. The width of the guide slot 44 corresponds inall places to the diameter of the cylindrical axle 49 which lies aboutparallel to the lengthwise extent of the pullrod 13.

In a transverse bar 51 extending between the two bearing flanges 43there is clamped at one end a bending spring 52, which presses with itsfree end 53 against the axle 49. The transverse bar 51 is located abovethe slot 44, so that by reason of the pre-stressing force of the bendingspring 52 the axle 49 is prestressed in the direction toward the lowerend 47 of the descending branch 46 of the guide channel 44.

Likewise for reasons of clarity the other parts of the roll-up windowblind have been omitted from FIG. 3, in order to make evident theessential substance of the bearing arrangement 42 and of the guideelement 41.

With additional reference to the representation in FIGS. 4 and 5 thereis now explained the manner of functioning:

In the reeled-in state according to FIG. 5 the pullrod 13 rests with theedges of its cover strip 25 on the hat deposit area 6. It closes theoutlet slot 7, which it overhangs with the cover strip 25. In this statethe actuating levers 9 and 11 are withdrawn under the hat deposit area 6(not represented in FIGS. 4 and 5) and, furthermore, the blind material12 is completely wound up on the winding shaft 8.

In the reeled-in state, by reason of the relative proportions of thethickness of the hat deposit area 6 as well as the spatial position ofthe guide slot 44, the roller 41 lies with its outer circumferentialsurface 28 against the edge 22 of the outlet slot 7. Its axle 49 islocated there in the farthest remotely lying end of the horizontallyrunning branch 45 of the guide slot 44.

The bending spring 52, which is supported on the circumferential surfaceof the axle 49, presses the guide roller 51 against the slot edge 22.

In order, proceeding from this position, to draw out the roll-up windowblind 5, the motor drive arrangement 20 is set in operation, whereby theactuating levers 9, 11 are increasingly raised out of their positionparallel to the winding shaft 8. Hereby they move the pullrod 13 upwardand draw the blind material 12 correspondingly out of the outlet slot 7.In the course of the drawing-out the guide roller 41 moves to a positionabove the outlet slot 7, so that it is no longer pressed back from theslot edge 22 against the action of the bending spring 52. The bendingspring 52, therefore, moves the axle 49 into the position according toFIG. 4, i.e. first into the transition zone between the two branches 45and 46 of the guide slot 44.

As soon as the guide roller 41 with its circumferential surface 48 hasbecome completely free from the slot edge 22, the bending spring 52—byreason of its anchoring point which, as mentioned above, lies above theguide slot 44—will move the axle 49 also downward in the direction tothe lower end 47 of the vertical branch 46 of the guide channel 44.

After about 50 to 90% of the maximally possible travel-out stroke, theguide roller 41, as FIG. 3 shows, will come in contact with the innerside of the windowpane 4. Since it overhangs the outer contour of thecover strip 25, it prevents a contact between the windowpane 4 and thecover strip 25.

By reason of the slope between the windowpane 4 and the movement path ofthe two actuating levers 9 and 11, the force with which the guide roller41 is pressed into the window pane 4 becomes increasingly greater. Sincethis force develops exclusively an obliquely downward-directed componenton the axle 49, this axle 49 is increasingly pressed against the end 47of the guide channel 44. This is achieved essentially by theaway-yielding course of the lower branch 46 of the guide channel 44.

The bending spring 52 does not need to absorb any force component whichderives from the pressing-on force of the guide roller 41 against thewindowpane 4.

As soon as the guide roller 41 comes in contact with the windowpane 4,it begins to turn with, or on, its axle 49. Thereby there arises on theinside of the windowpane 4 exclusively a rolling movement and no slidingmovement.

In the reeling-in, the process begins in FIG. 3, and shortly before thecomplete reeling-in, the state according to FIG. 4 is reached. Thecontact between the outer circumferential surface 48 of the guide roller51 and the upper edge of the slot flange 23 generates an upward-directedforce which is opposed to the force of the bending spring 52, but isgreater. The axle 49, therefore, despite the action of the spring 52, israised and passes into the transition zone between the two branches 45and 46 of the guide slot 44. The further downward movement then pressesthe axle 49 against the force of the bending spring 52, back into thehorizontal branch 45.

It is obvious that the above-explained processes in the two guideelements 41 take place beside the ends of the pullrod 13.

The new arrangement requires no recesses in the outlet slot in order tomake possible the passage-through of the guide elements 41.

In deviation from the embodiment shown, it is also possible to take,instead of for example a wire-form bending spring 52, a leaf springwhich is forked at its end adjacent to the axle 49, so that also theaxle 49, beside the two face sides of the guide roller 41, exerts aforce on the axle 49.

FIG. 6 shows an embodiment in which, instead of the guide roller 41, aguide skid 41 is used. The guide slot 44 has a constant curvature overits length and everywhere the same slot width. Its position is asrepresented in the figure, or as it results from the functionaldescription given below.

The guide skid 41 has the form of a circular sector of more than 180°,and it consists of friction-poor material, for example PTFE. The guideskid 41 is a plane-parallel plate that fits between the two bearingflanges 43 and which is provided in the vicinity of its straight edgewith two guide pins 55 which are aligned with one another. Each guidepin 55 has an about reniform shape, and, namely, the pin has the samecurvature as the guide channel 44 and is merely somewhat shorter in theperipheral direction. Here the guide skid 41 is prevented from tilting.The only movement that it can execute is a movement along the circulararc that is given by the guide channel 44.

The reeled-out state is illustrated in FIG. 6 with continuous lines andone perceives how the guide skid 41 with its circumferential surfaceoverhangs the edge of the cover strip 25. Otherwise the movement occursabout an axis which again lies parallel to the lengthwise extent of thecover strip 25 or of the pullrod 13.

In the reeling-in the guide skid 41 similarly as the guide roller 41 ispressed upward from the slot edge 22 into the position shown in brokenlines in FIG. 6. There the bending spring 52 is more strongly bent.

Conversely, the bending spring 52 presses the guide skid 41 into theposition drawn in solid lines according to FIG. 6 as soon as, in thetraveling-out of the roll-up window blind, it has come free from theoutlet slot 7.

In the two embodiments explained before, the yielding movement of theguide elements 41 occurs about an axis that is aligned parallel to thelongitudinal extent of the pullrod 13. FIGS. 7 to 9, in which theretreat movement occurs with respect to an axis which standsperpendicular on the longitudinal axis of the pullrod 13.

Also FIGS. 7 to 9 are much schematized and show merely the partsrequired for the bearing of the guide element 41 in a simplified form.

On a holding flange 61 leading downward from the cover strip 25, abearing carrier 62 is swingably borne. The bearing carrier 62 carries anupward extending bearing pin 63 which is turnably borne in a bearingbore (not shown) of the holding flange 61. The axis of rotation runsvertically and at a right angle to the longitudinal axis of the pullrod13. On the free end facing the window pane 4, of the bearing carrier 62,the guide roller 41 is turnably borne. By means of a winding spring 65,the bearing carrier 62 is pre-stressed in the end position in which theguide roller 41 overhangs the outer contour of the cover strip 25. Inthis position, the axis of rotation of the guide roller 41 runs parallelto the section of the ordinarily curved windowpane 4 on which the guideroller 41 lies. In this manner, the force active between the guideroller 41 and the windowpane 4 generates no torque with respect to thebearing pin 63.

Underneath the axis of the guide roller 41 the bearing part carries acontrol lever 66. This control lever 66 cooperates with an obliquesurface 67 which is formed on the slot edge 22. The oblique surface 67provides that in the plunging of the control lever 66 the contactbetween the actuating lever 66 and the oblique surface 67 swings thebearing carrier around about the axis defined by the bearing pin 63, sothat the roller 41 is folded back in the desired manner with respect tothe outer contour of the cover strip 25 in order to fit into the outletslot 7.

Otherwise, the function and manner of functioning is similar to thatdescribed above.

A roll-up window blind for automobile rear windows has two actuatinglevers, with which the pullrod is moved in the direction of areeling-out or reeling-in of the rouleau web. The levers are borne insuch manner that in the reeled-out state the pullrod is pressed with apre-stressing force against the rear window pane. In order to avoid adamaging of the heating wires, the pull rod is provided on end side withguide elements which are movably mounted on the pullrod. With areeled-out blind they project beyond the outer contour of the pullrodand, while they themselves lie against the rear windowpane, they holdthe pull rod at a distance from the rear windowpane. In the reeling-inthey are drawn back behind the outer contour of the pullrod, so thatthey can be withdrawn into the slot from which the blind materialemerges, and, namely, without recesses being necessary on the slit edgesfor the guide elements.

What is claimed is:
 1. A roll-up window blind for a window of a motorvehicle, the window having an associated window pane, the roll-up blindcomprising: a rotatable winding shaft, a blind material having parallelfirst and second edges with the first edge being connected to thewinding shaft for movement between a reeled-in position and a reeled-outposition, a first drive arrangement which pre-stresses the winding shaftin a direction corresponding to moving the blind material to thereeled-in position, a pull rod fastened to the second edge of the blindmaterial, at least one deflection-resistant actuating element fortransferring an associated second drive arrangement between a firstposition in which the pullrod is disposed adjacent the winding shaft anda second position in which the pullrod is disposed relatively furtheraway from the winding shaft, and two guide elements for guiding the pullrod on the window pane, the guide elements being disposed in spacedrelation to each other and being supported on the pull rod bycorresponding bearing arrangements for movement between a firstretracted position and a second guide position, wherein in the firstretracted position the guide elements are retracted with respect to acircumferential surface of the pullrod and in the second guide positionthe guide element project beyond the circumferential surface of thepullrod in order to guide the pull rod on the window pane as the blindmaterial moves from the reeled-in position to the reeled-out position.2. A roll-up window blind according to claim 1, wherein the windingshaft is supported in a housing having an outlet slot for the blindmaterial.
 3. A roll-up window blind according to claim 1, wherein thewinding shaft is supported in a housing installed into a hat depositarea of the motor vehicle.
 4. A roll-up window blind according to claim3, characterized in that an outlet slot for the blind material iscontained in a hat deposit area of the motor vehicle.
 5. A roll-upwindow blind according to claim 1, wherein the first drive arrangementis a spring motor which is located inside the winding shaft.
 6. Aroll-up window blind according to claim 1, further including an outletslot for the blind material and wherein the pullrod and the outlet slothave complementary shapes such that when the blind material is in thereel-in position the pullrod closes the outlet slot except for anannular gap surrounding the pullrod.
 7. A roll-up window blind accordingto claim 1, further including an outlet slot for the blind material andwherein the pullrod and the outlet slot have complementary shapes suchthat when the blind material is in the reel-in position the pullrodcloses the outlet slot.
 8. A roll-up window blind according to claim 1,wherein each actuating element comprises an actuating lever pivotablysupported beside the winding shaft, each actuating lever having a freeend that cooperates with the pullrod and being pivotable from a firstposition in which the actuating lever extends about parallel to thewinding shaft into a second position in which the actuating lever is atabout a right angle to the winding shaft.
 9. A roll-up window accordingto claim 1, wherein the guide elements comprise slide skids.
 10. Aroll-up window blind according to claim 1, wherein the guide elementscomprise rotatable rollers.
 11. A roll-up window blind according toclaim 1, wherein each bearing arrangement includes a slide-block guide.12. A roll-up window blind according to claim 11, wherein the side-blockguide has a curved guide slot for leading the guide element along apath.
 13. A roll-up window blind according to claim 12, wherein theguide slot is curved in a continuous form.
 14. A roll-up window blindaccording to claim 12, wherein the guide slot has an L-shaped form. 15.A roll-up window blind according to claim 11, wherein each bearingarrangement includes a bearing carrier which is pivotable about abearing axis.
 16. A roll-up window blind according to claim 15,characterized in that the bearing axis extends approximately parallel toa plane defined by the blind material in the reeled-out position.
 17. Aroll-up window blind according to claim 15, wherein the bearing axisextends at a right angle to the pullrod.
 18. A roll-up window blindaccording to claim 1, wherein each guide element has and associatedpre-stressing device for pre-stressing the guide element toward thesecond guide position.
 19. A roll-up window blind according to claim 11,wherein each bearing arrangement has an associated pre-stressing devicefor pre-stressing the guide element toward the second guide position.20. A roll-up window blind according to claim 18, wherein thepre-stressing device includes a bending spring.
 21. A roll-up windowblind according to claim 1, wherein each guide element is movable alonga path that curves about an axis is parallel to a longitudinal axis ofthe pullrod between the first retracted position and the second guideposition.